Patents by Inventor Joon-Sik Park

Joon-Sik Park has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240099114
    Abstract: A display device may include a first electrode, a second electrode, an emission layer, an intervening layer, and a first encapsulation layer. The second electrode may overlap the first electrode. The emission layer may be disposed between the first electrode and the second electrode, may overlap the first electrode, and may include a light emitting material. The intervening layer may directly contact the second electrode, may be spaced from each of the first electrode and the emission layer, and may include a fluorine compound. A first section of the first encapsulation layer may overlap the emission layer. The intervening layer may be positioned between the second electrode and a second section of the first encapsulation layer.
    Type: Application
    Filed: November 24, 2023
    Publication date: March 21, 2024
    Inventors: Jae Sik KIM, Jae Ik KIM, Jung Sun PARK, Seung Yong SONG, Duck Jung LEE, Yeon Hwa LEE, Joon Gu LEE, Kyu Hwan HWANG
  • Publication number: 20240086603
    Abstract: A method of reinforcement learning of a neural network device for generating a verification vector for verifying a circuit design comprising a circuit block includes inputting a test vector to the circuit block, generating one or more rewards based on a coverage corresponding to the test vector, the coverage being determined based on a state transition of the circuit block based on the test vector, and applying the one or more rewards to a reinforcement learning.
    Type: Application
    Filed: November 16, 2023
    Publication date: March 14, 2024
    Applicant: SAMSUNG ELECTRONICS CO, LTD.
    Inventors: In HUH, Jeong-hoon KO, Hyo-jin CHOI, Seung-ju KIM, Chang-wook JEONG, Joon-wan CHAI, Kwang-II PARK, Youn-sik PARK, Hyun-sun PARK, Young-min OH, Jun-haeng LEE, Tae-ho LEE
  • Patent number: 8992534
    Abstract: A method and a system for cutting the knee joint using a robot. A cantilevered cutter is introduced into the knee joint from inside and outside of upper and lower bones of the knee joint to realize a tunnel cutting technique in which cutting is conducted such that tunnels are defined in bone and remnant bone is cleared. The cutter includes a shaft in which a substantial axial portion is fitted into a sleeve and a remaining axial portion serves as a cantilever extending out of the sleeve, and a head which is formed at a distal end of the shaft. A length of the cantilever and a diameter of the head are determined to have minimum sizes as long as the head can be introduced into bone in such a way as to define a tunnel and can be moved in the bone while cutting the bone.
    Type: Grant
    Filed: February 8, 2012
    Date of Patent: March 31, 2015
    Inventors: Chun Tek Lee, Sung Hwan Yoon, Oh Myoung Kwon, Joon Sik Park, Hang Jae Lee, Mi Ro Kang, Masei Marty Trabish, Jai Karan
  • Patent number: 8388120
    Abstract: Disclosed is an integrated apparatus for supplying ink and regulating pressure, which comprises a chamber accommodating ink, a main chamber preliminarily storing ink to be supplied to the chamber, a nozzle communicating with the chamber and jetting ink transferred from the chamber to an outside, a first valve blocking or letting flow of ink between the main chamber and the chamber, a second valve blocking and letting flow of ink between the chamber and the nozzle, a piston placed above ink accommodated in the chamber and reciprocating rectilinearly while sealing ink inside the chamber, a piston driver providing a driving force to the piston, a sensor installed in the chamber and sensing pressure due to weight of ink, and a controller receiving a sensed signal from the sensor and outputting a signal for controlling the piston to the piston, wherein the piston moves down as a level of ink accommodated in the chamber is lowered when ink is discharged to the outside through the nozzle, and the piston moves up and
    Type: Grant
    Filed: May 25, 2010
    Date of Patent: March 5, 2013
    Assignee: Korea Institute of Machinery and Materials
    Inventors: Dong-Youn Shin, Jun-Hee Lee, Su-A Park, Joon-Sik Park, Wan-Doo Kim
  • Patent number: 8304497
    Abstract: The present invention discloses a vesicle which is excellent in structure stability and environmental responsiveness and also can be produced by a simple operation. More particularly, the present invention discloses a vesicle comprising a membrane formed of a first block copolymer containing a non-chargeable hydrophilic segment and a chargeable segment, and a second block copolymer containing a non-chargeable hydrophilic segment and a chargeable segment having an electric charge which is opposite to that of the chargeable segment of the first block copolymer.
    Type: Grant
    Filed: April 28, 2006
    Date of Patent: November 6, 2012
    Assignee: The University of Tokyo
    Inventors: Kazunori Kataoka, Aya Koide, Kensuke Osada, Yuichi Yamasaki, Shigeto Fukushima, Joon-Sik Park
  • Publication number: 20120165830
    Abstract: A method and a system for cutting the knee joint using a robot. A cantilevered cutter is introduced into the knee joint from inside and outside of upper and lower bones of the knee joint to realize a tunnel cutting technique in which cutting is conducted such that tunnels are defined in bone and remnant bone is cleared. The cutter includes a shaft in which a substantial axial portion is fitted into a sleeve and a remaining axial portion serves as a cantilever extending out of the sleeve, and a head which is formed at a distal end of the shaft. A length of the cantilever and a diameter of the head are determined to have minimum sizes as long as the head can be introduced into bone in such a way as to define a tunnel and can be moved in the bone while cutting the bone.
    Type: Application
    Filed: February 8, 2012
    Publication date: June 28, 2012
    Applicants: Chang San Medical Treatment Foundation
    Inventors: Chun Tek Lee, Sung Hwan Yoon, Oh Myoung Kwon, Joon Sik Park, Hang Jae Lee, Mi Ro Kang, Masei Marty Trabish, Jai Karan
  • Publication number: 20100302325
    Abstract: Disclosed is an integrated apparatus for supplying ink and regulating pressure, which comprises a chamber accommodating ink, a main chamber preliminarily storing ink to be supplied to the chamber, a nozzle communicating with the chamber and jetting ink transferred from the chamber to an outside, a first valve blocking or letting flow of ink between the main chamber and the chamber, a second valve blocking and letting flow of ink between the chamber and the nozzle, a piston placed above ink accommodated in the chamber and reciprocating rectilinearly while sealing ink inside the chamber, a piston driver providing a driving force to the piston, a sensor installed in the chamber and sensing pressure due to weight of ink, and a controller receiving a sensed signal from the sensor and outputting a signal for controlling the piston to the piston, wherein the piston moves down as a level of ink accommodated in the chamber is lowered when ink is discharged to the outside through the nozzle, and the piston moves up and
    Type: Application
    Filed: May 25, 2010
    Publication date: December 2, 2010
    Applicant: KOREA INSTITUTE OF MACHINERY & MATERIALS
    Inventors: Dong-Youn Shin, Jun-Hee Lee, Su-A Park, Joon-Sik Park, Wan-Doo Kim
  • Patent number: 7732561
    Abstract: The invention provides approximately monodispersible random copolymers obtained from monomeric mixtures of 2-ethyl-2-oxazoline with 2-isopropyl-2-oxazoline, production method thereof and 2-isopropyl-2-oxazoline homopolymer obtained by using special initiator. Such polymers exhibit temperature-responsiveness in an aqueous solution within a broad temperature range, and are useful materials in the technical fields of surface chemistry and biomaterials.
    Type: Grant
    Filed: August 30, 2006
    Date of Patent: June 8, 2010
    Assignee: Japan Science and Technology Agency
    Inventors: Kazunori Kataoka, Yuichi Yamasaki, Joon-Sik Park
  • Publication number: 20090287222
    Abstract: A method and a system for cutting the knee joint using a robot. A cantilevered cutter is introduced into the knee joint from inside and outside of upper and lower bones of the knee joint to realize a tunnel cutting technique in which cutting is conducted such that tunnels are defined in bone and remnant bone is cleared. The cutter includes a shaft in which a substantial axial portion is fitted into a sleeve and a remaining axial portion serves as a cantilever extending out of the sleeve, and a head which is formed at a distal end of the shaft. A length of the cantilever and a diameter of the head are determined to have minimum sizes as long as the head can be introduced into bone in such a way as to define a tunnel and can be moved in the bone while cutting the bone.
    Type: Application
    Filed: July 17, 2008
    Publication date: November 19, 2009
    Inventors: Chun Tek Lee, Sung Hwan Yoon, Oh Myoung Kwon, Joon Sik Park, Hang Jae Lee, Mi Ro Kang, Masei Marty Trabish, Jai Karan
  • Publication number: 20090156782
    Abstract: The invention provides approximately monodispersible random copolymers obtained from monomeric mixtures of 2-ethyl-2-oxazoline with 2-isopropyl-2-oxazoline, production method thereof and 2-isopropyl-2-oxazoline homopolymer obtained by using special initiator. Such polymers exhibit temperature-responsiveness in an aqueous solution within a broad temperature range, and are useful materials in the technical fields of surface chemistry and biomaterials.
    Type: Application
    Filed: August 30, 2006
    Publication date: June 18, 2009
    Inventors: Kazunori Kataoka, Yuichi Yamasaki, Joon-Sik Park
  • Publication number: 20090081458
    Abstract: The present invention discloses a vesicle which is excellent in structure stability and environmental responsiveness and also can be produced by a simple operation. More particularly, the present invention discloses a vesicle comprising a membrane formed of a first block copolymer containing a non-chargeable hydrophilic segment and a chargeable segment, and a second block copolymer containing a non-chargeable hydrophilic segment and a chargeable segment having an electric charge which is opposite to that of the chargeable segment of the first block copolymer.
    Type: Application
    Filed: April 28, 2006
    Publication date: March 26, 2009
    Inventors: Kazunori Kataoka, Aya Koide, Kensuke Osada, Yuichi Yamasaki, Shigeto Fukushima, Joon-Sik Park